Combine flour, baking powder, pumpkin pie spice, and salt in a bowl.
Stir milk, brown sugar, pumpkin puree, vanilla extract, oil, and water together in a second bowl; mix thoroughly. Make a well in the flour mixture, add milk mixture, and mix until evenly combined.
Heat a nonstick skillet over medium-high heat. Drop 1/4 cup pancake batter onto the hot skillet and cook until bubbles form and edges are dry, 3 to 5 minutes. Flip and cook until browned on the other side, 3 to 5 minutes. Repeat with remaining batter.
